Worst air pollution Longford, today and tomorrow
Today (9 August): Air quality in Longford is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (NO2: 57.7/100).
Tomorrow (10 August 2026): Air quality in Longford is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 28.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Longford's air quality benefits from its central midlands position, with vehicle traffic on the N4 and N5 the primary local source amid generally good wind dispersal across the flat, boggy countryside.
Today - 9 August | Pollution peaks at 06:00
AQI:
Medium
57.7/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Medium
57.7/100
O3 (ozone):
Fair
33.9/100
SO2 (sulfur dioxide):
Good
19.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.6/100
PM1 (ultrafine particles):
Good
16.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 06:00
AQI:
Fair
28.6/100
PM2.5 (fine particles):
Good
8.8/100
PM10 (coarse particles):
Good
3.6/100
NO2 (nitrogen dioxide):
Fair
28.6/100
O3 (ozone):
Fair
21.4/100
SO2 (sulfur dioxide):
Good
11.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
6.4/100
Pollen forecast in Longford
View pollen forecastFrequently Asked Questions
Is air quality bad in Longford right now?
On 9 August 2026, overall air quality in Longford is fair. O3 is the main pollutant at 33.9/100. Pollution peaks around 6:00 AM (NO2: 57.7/100).
Will air quality be worse tomorrow in Longford?
On 10 August 2026, air quality conditions in Longford will be similar to today, with AQI forecast at fair at 28.6/100. Pollution peaks around 6:00 AM (NO2: 28.6/100).
When is air pollution at its worst in Longford?
Longford experiences a distinct seasonal pattern in air quality, tied to its riverside setting near the River Camlin in the midlands. Turf and coal smoke can build up on still, cold winter nights, while the wetter, windier months of the rest of the year usually keep the air clean. Away from the town centre, conditions tend to stay a little cleaner even on the stillest winter nights.
Are air quality levels in Longford based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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